diff options
Diffstat (limited to 'include/config_fsl_chain_trust.h')
| -rw-r--r-- | include/config_fsl_chain_trust.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/include/config_fsl_chain_trust.h b/include/config_fsl_chain_trust.h new file mode 100644 index 0000000000..45dda56bc3 --- /dev/null +++ b/include/config_fsl_chain_trust.h @@ -0,0 +1,101 @@ +/* + * Copyright 2015 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __CONFIG_FSL_CHAIN_TRUST_H +#define __CONFIG_FSL_CHAIN_TRUST_H + +/* For secure boot, since ENVIRONMENT in flash/external memories is + * not verified, undef CONFIG_ENV_xxx and set default env + * (CONFIG_ENV_IS_NOWHERE) + */ +#ifdef CONFIG_SECURE_BOOT + +#undef CONFIG_ENV_IS_IN_EEPROM +#undef CONFIG_ENV_IS_IN_NAND +#undef CONFIG_ENV_IS_IN_MMC +#undef CONFIG_ENV_IS_IN_SPI_FLASH +#undef CONFIG_ENV_IS_IN_FLASH + +#define CONFIG_ENV_IS_NOWHERE + +#endif + +#ifdef CONFIG_CHAIN_OF_TRUST + +#ifndef CONFIG_EXTRA_ENV +#define CONFIG_EXTRA_ENV "" +#endif + +/* + * Control should not reach back to uboot after validation of images + * for secure boot flow and therefore bootscript should have + * the bootm command. If control reaches back to uboot anyhow + * after validating images, core should just spin. + */ + +/* + * Define the key hash for boot script here if public/private key pair used to + * sign bootscript are different from the SRK hash put in the fuse + * Example of defining KEY_HASH is + * #define CONFIG_BOOTSCRIPT_KEY_HASH \ + * "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b" + */ + +#ifdef CONFIG_BOOTSCRIPT_KEY_HASH +#define CONFIG_SECBOOT \ + "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \ + "setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \ + "ramdisk_size=600000\';" \ + CONFIG_EXTRA_ENV \ + "esbc_validate $bs_hdraddr " \ + __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \ + "source $img_addr;" \ + "esbc_halt\0" +#else +#define CONFIG_SECBOOT \ + "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \ + "setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \ + "ramdisk_size=600000\';" \ + CONFIG_EXTRA_ENV \ + "esbc_validate $bs_hdraddr;" \ + "source $img_addr;" \ + "esbc_halt\0" +#endif + +/* For secure boot flow, default environment used will be used */ +#if defined(CONFIG_SYS_RAMBOOT) +#ifdef CONFIG_BOOTSCRIPT_COPY_RAM +#define CONFIG_BS_COPY_ENV \ + "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \ + "setenv bs_hdr_flash " __stringify(CONFIG_BS_HDR_ADDR_FLASH)";" \ + "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \ + "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \ + "setenv bs_flash " __stringify(CONFIG_BS_ADDR_FLASH)";" \ + "setenv bs_size " __stringify(CONFIG_BS_SIZE)";" + +#if defined(CONFIG_RAMBOOT_NAND) +#define CONFIG_BS_COPY_CMD \ + "nand read $bs_hdr_ram $bs_hdr_flash $bs_hdr_size ;" \ + "nand read $bs_ram $bs_flash $bs_size ;" +#endif /* CONFIG_RAMBOOT_NAND */ +#endif /* CONFIG_BOOTSCRIPT_COPY_RAM */ + +#endif + +#ifndef CONFIG_BS_COPY_ENV +#define CONFIG_BS_COPY_ENV +#endif + +#ifndef CONFIG_BS_COPY_CMD +#define CONFIG_BS_COPY_CMD +#endif + +#define CONFIG_CHAIN_BOOT_CMD CONFIG_BS_COPY_ENV \ + CONFIG_BS_COPY_CMD \ + CONFIG_SECBOOT + +#endif +#endif |